Thread guide for spinning and twisting machines



G. H MAGRATH THREAD GUIDE FOR SPINNING AND TWISTING MACHINES IApril 3, 1928.

Filed April l. 1927 INVENToRQ ATTORNEY.

BY wf 'III/IIIA lill;

Patented Apr. 3, `1923.

UNITED STATES PATENT OFFICE.

GEORGE H. MAGRATH, OF WHITINSVILLE, MASSACHUSETTS, ASSIGNOR T0 WHITIN MACHINE WORKS, 0F WHITINSVILLE, MASSACHUSETTS.

Application iiled April 1,

My invention has reference to thread guides for spinning and twisting machines; and it consists in certain improvements set forth in the following specificationand shown in the accompanying drawings, which form part thereof.

Heretofore a thread guide has been formed of a solid block of porcelain, glass or metal supported in a holder which 1s usually adjustably mounted on the framlng of the machine. In a guide of this type frequent breakages of the guide block occur necessitating the replacement with a new block at a considerable expense.

The object of my invention is to provide a simple construction of the thread guide and holder thereof which shall embody chcapness, durability, adaptabihty and adjustability.

The novel features of my invention are fully described in the following specification and claims and illustrated inthe accompanying drawings in which:

Figures 1 to 3 inclusive lllustrate a section of my improved guide, Figure 1 being a plan, Figure 2 a side view and Figure an end elevation. Figures 4, 5 and 6 illustrate respectively the plan, vside andy end views of an assembled guide made up of two individual duplicate sections in a reversed relation with each other. Figure 7 is a perspective view of my guide holder. Figure 8 is a perspective view of the clamp for maintaining the guide in its holder. Figure 9 is a plan of the assembled guide in its holder showing the manner of attaching the holder to the thread board of a twisting machine. Figure 10 is an end view of the guide in its holder showing the d-iagonal path for the thread into the eye of the guide, and Figure 11 is a sectional view on line 11-11 of Figure 9.

Throughout the following detailed description, and on the several figures of the drawings, similar parts are referred to by like numeral characters. l

My improved guide consists of a block shown in Figure 4 made up of a pair of duplicate sections (shown in Figure 1) which may be made of porcelain or other suitable material with smooth polished surfaces. Each section has a flat body portion, the rear end 12 of which serves as a base adapted to register with the base of the 1927. Serial No. 180,118.

other section in the formation of the guide block. The front end 13 of the body is hooked shaped for retaining the thread in lts Guide Veye 14 located in the center of the lbody portion. A narrow lateral slit 15 opens lnto' the side of the eye to allow for the insertion of the thread. The side o f the hooked portion of the body opposite of theslit 15 is provided with a flange .16 prolectlng at right angles thereto, the inner side of the flange being bevelled towards the point of the thread retaining hook 13, thus providing a diagonal passage for the thread into t-he slit of the guide eye.

'.fhe guide block is formed by placing a pair of sections in reversed position together so that both bases 12 and guide eyes 14 register with each other respectively and the hooked portions 13 overlap each other leaving a diagonal path 17 between for the Insertion of a thread into the guide eye.

The block is then placed in the box-end 18 of the sheet metal holder 19 and tightly held therein by a clamping member 20 fastened to the underside of the holder 19 by a bolt 21 and locking nut 22. The holder 19 is adjustably mounted on the thread board 23 fixed to the framing of the machine.

I claim- 1. A thread guide comprising a pair of separable duplicate sections, each section having a rear base portion, a hook shaped front portion forming a guide eye between said portions with a slit opening into one side of said eye, a flange projecting at a right angle from said hook shaped portion, the inner side of said flange being bevelled towards the point of the hook, said sections formed into a block by 'combining them together in a reversed relation with each other with the base and eye on one section registering respectively with those of the other, and means for holding the sections together in a block formation.

2. A thread guide comprising a pair of separable duplicate sections, each section having a rear base portion, a hook shaped front portion forming a guide eye between said portions with a slit opening into one side of said eye, a flange projecting at a right angle from said hook shaped portion, the inner side of said flange being bevelled 1,oes,oes

metal member bolted to the holder for maintaminf the block in the chamber, and means for a ]ustably mounting the holder on the l0 thread board.

In testimony whereof, I have signed this speclfication,

GEORGE H. MAGRATH. 

